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Stalls when accelerating?

Tiny
JCKEIFER
  • MEMBER
  • 2015 KIA OPTIMA
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 108,000 MILES

Start and Idles fine stall when giving it gas.
Will idle drive, but as soon as I try to get to a normal speed it stalls.
No check engine light on.
I am thinking fuel filter or fuel pump.
Thursday, May 6th, 2021 AT 9:50 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
This could be a fuel issue but it also could be a vacuum leak. So we need to check both.

here are guides that will show you how to do these tests:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Let's run through both of these and go from there. Let us know what you find. Thanks
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Friday, May 7th, 2021 AT 7:31 PM

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